MVME2604-1161A工控模块
fft.PeakTorque=系统惯性∆rpmx加速时间+T其中:峰值扭矩=加速加载所需的总电机扭矩。系统惯性=包括电机在内的总系统扭矩。时间=加速时间(秒)。∆rpm=加速时间内电机速度的变化。ProductDataABAC伺服电机系统惯性轴b.-in.-sPeakTorque=系统惯性轴∆rpm.x加速时间+Tl其中:峰值扭矩=加速负载所需的总电机扭矩in.-in.SystemInertia=总系统扭矩in.-in-slistedasJtjmonformulasheetsTime=加速时间(单位:秒)Tl=负载扭矩(单位:英寸)。∆rpm=加速时间内电机速度的变化。如果电机加速/减速的总时间+达到总循环时间的百分比+t+t+t,则使用所示的公式确定电机节能率或转矩。DutyCycle Profile Decelevate Pd Accelerate Tpa RepeatMoveCycle RPM StadiSpeedTss RestTrTotalCycle Timetttt其中:Trms电机RM或整个工作周期内的平均扭矩。以磅-英寸或磅-英尺表示。必须在公式中使用相同的单位。Tpa电机峰值或峰值加速至最大速度。以磅/英寸或磅/英尺表示。相同的单位必须在公式内使用以磅-英寸或磅-英尺表示。当电机转速通常为Tss.t、t、t时,必须通过公式使用相同的单位,t每部分工作周期的时间(以秒为单位)。Tpaxt+Tssxt+Tpdxt+Trxtt+t+t t+t rms=。选择伺服电机:选择一个具有最大速度能力的电机,以达到计算步骤中的峰值。b选择具有连续输出或输出能力的选择器,等于或大于步骤中确定的值,以较大者为准。c选择能够提供步骤中确定的峰值扭矩的电机,直到步骤中确定最大转速。产品数据ABAC伺服电机伺服电机驱动丝杠公式位置控制器运动控制驱动电机变速器螺母位置反馈设备丝杠表/滑块部件/工具电机转速Nm=VLeadxG.R.ContinuousTorqueattheLeadscrew Tb=WxuxLead.xeThrustxLead.xe+WxLead.xe+正弦θContinuousMotorTorqueTm=TbG.R.xex.TotalSystemInertiaJtjm=W+JbLead.xe[]G、 R.+Jgb+Jm加速扭矩参见第页《伺服电机应用指南》中的步骤。其中:注释:e=飞轮效率,e%典型大轴,e%典型值。G.R.=扭矩与螺杆速度之比。Jb=导螺杆惯性b-in.-s.Jgb=齿轮箱惯性(在螺杆上)。Jm=电机惯性b-in..s.Jtjm=在螺杆上的总系统惯性b-in.-s。导程=螺杆每转一圈的滑动量。Nm=电机速度rpm。Tb=扭矩导螺杆lb.-in.。推力=由滑块/负载施加在工件上的切削力。Tl=在螺杆旋转过程中呈现的负载扭矩gaccellb-in..Tm=在温度下所需的负载扭矩lb-
t.PeakTorque=SystemInertiax∆rpmxTimetoaccelerate+Tlwhere:PeakTorque=totalmotortorquerequiredtoacceleratetheloadinlb.-ft.SystemInertia=totalsysteminertiaincludingmotorinlb.-ft.Time=accelerationtimeinsecondsTl=loadtorquepresentatthemotorshaftduringaccelinlb.-ft.∆rpm=changeinmotorvelocityduringaccelerationtime.ProductDataABACServomotorSystemInertiainlb.-in.-sPeakTorque=SystemInertiax∆rpm.xTimetoaccelerate+Tlwhere:PeakTorque=totalmotortorquerequiredtoacceleratetheloadinlb.-in.SystemInertia=totalsysteminertiainlb.-in.-slistedasJtjmonformulasheetsTime=accelerationtimeinsecondsTl=loadtorquepresentatthemotorshaftduringaccelinlb.-in.∆rpm=changeinmotorvelocityduringaccelerationtime..Ifthemotorstotaltimetoaccelerate/deceleratet+texceeds%ofthetotalcycletimet+t+t+t,determinethemotorsaveragetorquewiththeformulashown.DutyCycleProfileDecelerateTpdAccelerateTpaRepeatMoveCycleRPMSteadySpeedTssRestTrTotalCycleTimettttwhere:TrmsThemotorsRMSoraveragetorqueoverthedutycycle.Expressedinlb.-in.orlb.-ft.Thesameunitsmustbeusedthroughouttheformula.TpaMotorpeaktorquetoacceleratetomaximumspeed.Expressedinlb.-in.orlb.-ft.Thesameunitsmustbeusedthroughouttheformula.TssMotortorquepresentatthemotorshaftduringconstantspeedsegment.Expressedinlb.-in.orlb.-ft.Thesameunitsmustbeusedthroughouttheformula.TpdMotorpeaktorquetodeceleratetozerospeed.Expressedinlb.-in.orlb.-ft.Thesameunitsmustbeusedthroughouttheformula.TrTorquewhenmotorisatzerospeedtypicallyisTss.t,t,t,tTimeforeachportionofthedutycycleinseconds.Tpaxt+Tssxt+Tpdxt+Trxtt+t+t+tTrms=.Toselectaservomotor:aSelectamotorwithmaximumspeedcapabilityofatleastthepeakrpmcalculatedinstep.bSelectamotorwithcontinuoustorquecapabilityequaltoorgreaterthanthevaluedeterminedinstepor,whicheverisgreater.cSelectamotorwiththecapabilitytosupplypeaktorqueasdeterminedinstep,uptothemaximumspeeddeterminedinstep.ProductDataABACServomotorServomotorDrivenLeadscrewFormulasPositionControllerMotionControlDriveMotorTransmissionNutPositionFeedbackDeviceLeadscrewTable/SlidePart/ToolMotorSpeedNm=VLeadxG.R.ContinuousTorqueattheLeadscrewTb=WxuxLead.xeThrustxLead.xeThrustxLeadxu.xe++WxLead.xe+sineθContinuousMotorTorqueTm=TbG.R.xex.TotalSystemInertiaJtjm=W+JbLead.x[]G.R.+Jgb+JmAcceleratingTorqueSeestepoftheServomotorApplicationGuideonpage.Where:Notes:e=Efficiencyofleadscrew,e%typicalorgearbox,e%typical.G.R.=Ratioofmotorspeedtoleadscrewspeed.Jb=Leadscrewinertialb.-in.-s.Jgb=Gearboxinertiaatthemotorshaftlb.-in.-s.Jm=Motorinertialb.-in.-s.Jtjm=Totalsysteminertiaatthemotorshaftlb.-in.-s.Lead=Movementofslideininchesperrevolutionofleadscrew.Nm=Motorvelocityrpm.Tb=Torqueatleadscrewlb.-in..Thrust=Cuttingforceappliedbyslide/loadonaworkpiecelbs.Tl=Loadtorquepresentatthemotorshaftduringaccellb.-in..Tm=Loadtorquerequiredatthemotorlb.-